Hammer union ball valve



FIG. 1 is a top, front perspective view of a hammer union adapted ball valve;

FIG. 2 is a top, rear perspective view thereof;

FIG. 3 is a side view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is an opposite side view thereof; and,

FIG. 6 is a top plan view thereof. 

The ornamental design for a hammer union ball valve, as shown and described. 